{"schemaVersion":1,"slug":"switch-disconnector","name":"Switch-disconnector","kind":"symbol","abbreviation":"SD","aliases":["HDS11Q69","VDS11Q69","load-break isolator"],"category":"power-distribution","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"A switch-disconnector combines operational switching with an isolation function.","description":["A switch-disconnector combines operational switching with an isolation function. Its designation should distinguish it from a disconnector that is not intended to interrupt load current."],"readingNotes":["Check both switching duty and the documented isolation function.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Identify utilization category","Show pole and neutral arrangement","Document isolation designation"],"distinction":"A load-break switch is not automatically a switch-disconnector; isolation suitability must be documented.","facts":[{"label":"Drawing role","value":"Switching path"},{"label":"Representation scope","value":"Functional concept; not an official standard graphic or a product footprint"},{"label":"Public vendor block reference","value":"HDS11Q69, VDS11Q69 (Autodesk identifiers; not IEC symbol numbers)"},{"label":"Identifier status","value":"The short label is a functional lookup label, not an assigned IEC or IEEE symbol number. Any separately listed Autodesk code is a verified vendor block name."}],"references":[{"sourceId":"pub-symbol-disconnect-variants","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."},{"sourceId":"switching-devices","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}],"related":["disconnector","circuit-breaker"],"artwork":"edu-switch-disconnector","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/switch-disconnector","illustration":{"url":"https://eloragrid.ai/library/illustrations/switch-disconnector.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-symbol-disconnect-variants","title":"AutoCAD Electrical: Disconnector variants","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-745AF70A-8A25-4729-AAB7-408A61929B9E.htm","type":"cad-reference","scope":"Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."},{"id":"switching-devices","title":"Elementary switching devices","publisher":"Schneider Electric — Electrical Installation Guide","url":"https://www.electrical-installation.org/enwiki/Elementary_switching_devices","type":"manufacturer","scope":"Explains disconnectors, load-break switches, contactors and fuses. The manufacturer diagrams remain at the source.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}]}